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Data coding method and system

A coding system and coding method technology, applied in data recording, optical recording/reproduction, digital recording/reproduction, etc., can solve problems such as complicated steps and achieve the effect of saving bandwidth

Inactive Publication Date: 2005-01-19
MEDIATEK INC
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Problems solved by technology

[0028] An object of the present invention is to provide a coding method to solve the problem that the known technical steps are too complicated

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  • Data coding method and system
  • Data coding method and system

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Embodiment Construction

[0047] see Figure 7 and Figure 8 , Figure 7 is a schematic diagram of the data encoding system 30 of the present invention, Figure 8 for Figure 7 Schematic representation of the digital data 50 . The data encoding system 30 of the present invention is used to encode a digital data 50 . Encoding system 30 comprises a data receiving module 32, a first memory 34, a header data writing module 36, a disturbing module 38, an error detection code generating module 40, an external parity code generating module 42, an internal A parity code generation module 44 , a second memory 46 and a modulation module 48 .

[0048] like Figure 8 As shown, the digital data 50 includes at least one header data 52 and at least one main data 54 , and the header data 52 corresponds to the main data 54 . In a preferred embodiment of the present invention, the digital data includes 16 main data and corresponding 16 header data. For the convenience of description, only one main data and its c...

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Abstract

This invention is a kind of digital data encoding method and system. It can execute the two steps of calculating error-detection code and disarranging main data at the same time, so to decrease the time of accessing the first storage. It adds the second storage on the encoding system. When encoding the exterior parity check code, the encoding system can access more than one line data once, so to decrease the time of accessing the first storage again.

Description

technical field [0001] The invention relates to a data encoding system and method, in particular to a data encoding system and method applied to an optical recording system. Background technique [0002] When an optical recording system writes data into an optical recording medium, a series of encodings must first be performed on the data, so that the data can be written into the optical storage medium by the optical recording system. Taking the Digital Versatile Disc (DVD) system as an example, please refer to figure 1 , figure 1 It is a flow chart of the main steps of the known DVD data encoding procedure. Known DVD data encoding procedures comprise the following steps: [0003] Step S110: Stored data or main data is temporarily stored in the memory to form a data sector. [0004] Step S112: The data sector is then scrambled to form a scrambled data sector by scrambling the main data. [0005] Step S114: The 16 scrambled data segments are encoded and temporarily store...

Claims

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Application Information

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IPC IPC(8): G11B7/00G11B20/10
Inventor 林利莲吴文义
Owner MEDIATEK INC
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